Fear I had sex without knowing

[kroconnor19]

I have had an obsessive fear of pregnancy/ STD. Every time I have ever had a sexual encounter (not even penetrative sex) I become filled with shame and guilt, and anxiety.
The other night I went on a date. We made out at the end of the night and he ended up fingering me. While it was nice during, I became so anxious the next day. Guilty that I would do that with someone I was so newly dating.
At the time I wasn’t worried of pregnancy because I knew he only used his finger.
Then I started worrying, what if he inserted his penis and I didn’t realize thinking it was his finger. I did notice some bleeding when I got home. I also have been worrying what if he touched his penis without me realizing it and he got sperm on his hand and then touched me.
I feel so anxious I could be pregnant, I worry I won’t feel relief until my period which is 2 weeks away.